Dry powder ceramsite concrete

Abstract

The invention relates to dry powder ceramsite concrete which is characterized by comprising the following components of 140-175 parts of cement, 100 parts of coal ash, 420-440 parts of yellow sand and 285-340 parts of ceramsite according to parts by weight. The grain size of the yellow sand is 3 to 15 cm, and the fineness modulus of the yellow sand is 2.4-3.0. The dry powder ceramsite concrete has the following advantages that: (1) the ceramsite is kept in a good condition and is not easily broken during the construction and the quality of the ceramsite concrete is guaranteed; (2) the dry powder ceramsite concrete is constructed by a minitype pumping machine when transported to the construction site, so that the bearing pressure of the construction site is greatly reduced, meanwhile, the labor is also saved, and the construction is relatively convenient; (3) the dry powder ceramsite concrete is added with water on the site and stirred so as to be stirred more uniformly, so that the dry powder ceramsite concrete can be freshly made while stirred, and the construction is facilitated.

Description

technical field [0001] The invention relates to dry powder ceramsite concrete, which belongs to the technical field of building materials. Background technique [0002] Ceramsite concrete uses ceramsite instead of stones as the aggregate of concrete, and the exterior wall panels of prefabricated steel-concrete structures use ceramsite concrete. Ceramsite concrete has the following advantages: (1) Ceramsite concrete is light in weight, 2 / 3~1 / 5 lighter than ordinary concrete. Due to its light weight, it can reduce the foundation load, thus reducing the weight of the entire building; Granular concrete has good thermal insulation performance and small heat loss; (3) Ceramsite concrete has good impermeability: the surface of ceramsite is rougher than gravel and has a certain water absorption capacity, so the bonding ability between ceramsite and cement sand is strong, Therefore, ceramsite concrete has high impermeability and durability; (4) ceramsite concrete has good fire resis...

AI Technical Summary

Problems solved by technology

The place where the ceramsite concrete was originally poured cannot bear too much load, so it often brings a lot of inconvenience to the pouring ceramsite concrete, and in order to prevent the ceramsite concrete from congealing during transportation, it must be stirred continuously, which is easy to cause the ceramsite to be stirred. Broken during the process, affecting the quality of ceramsite concrete